package m2;

import com.rabbitmq.client.*;

import java.io.IOException;
import java.util.concurrent.TimeoutException;

public class Consumer {
    public static void main(String[] args) throws IOException, TimeoutException {
        // 连接
        ConnectionFactory f = new ConnectionFactory();
        f.setHost("192.168.64.140");
        f.setPort(5672);
        f.setUsername("admin");
        f.setPassword("admin");
        Channel c = f.newConnection().createChannel();

        // 创建队列
        c.queueDeclare("helloworld",false,false,false,null);


        DeliverCallback deliverCallback = new DeliverCallback() {
            @Override
            public void handle(String consumerTag, Delivery message) throws IOException {
                String s = new String(message.getBody());
                System.out.println("收到; "+ s);
                // 模拟处理耗时消息
                // 遍历字符串找 '.' 字符, 每找到一个都暂停1秒
                for (int i = 0; i < s.length(); i++){
                    if (s.charAt(i) == '.'){
                        try {
                            Thread.sleep(1000);
                        } catch (InterruptedException e) {
                            e.printStackTrace();
                        }
                    }
                }
                System.out.println("------------消息处理结束");
            }
        };
        CancelCallback cancelCallback = new CancelCallback() {
            @Override
            public void handle(String conmsumerTag) throws IOException {

            }
        };
        // 从helloworld 接受消息
        /*
        第二个参数 true: 自动确认,自动 ACK
         */
        c.basicConsume("helloworld",true,deliverCallback, cancelCallback);
    }
}
